Razor-sharpening machine.



G. BROWNING.

RAZOR SHARPENING MACHINE.

APPLICATION FILED JULY 25, 1908.

1,1 00,05 1 Patented June 16,1914.

3 SHEETS-SHEET 1.

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G. BROWNING. RAZOR SHARPENING MACHINE. IAPPLIOATION FILED JULY 25, 1908.4

1,100,051 Patented June 16, 1914.

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G. BROWNING. RAZOR SHARPENING MACHINE. AFFLIUATION FILED JULY 25,1908.

1, 1 00,05 1 Patented June 16, 1914 3 SHEETS-SHEET 3.

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UNITED STATES- PATENT onnron.

GEORGE BROWNING, OF CHICAGO, ILLINOIS, IASSIGNOR 'IO PERFECTION RAZOR,STROP COMPANY, .OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

RAZOR-SHARPENING MACHINE.

Specification of Letters Patent.

Patented June 16, 1914.

Application filed July 25, 1908. Serial No. 445,314.

To all whom it may concern Be it known that I, GEORGEBROWNING, a subjectof the King of England, residing at Chicago, county of Cookfand State ofIllinois, have invented certain new and useful Improvements inRazor-Sharpening Machines and the like, of which the following is adescription.

My machine belongs to that class of de vices intended to sharpen orstrop a razor or a similar instrument in which means are 7 provided forholding the instrument in position for the action of the sharpening orstropping means that are brought in contact with the blade by theoperation of the machine.

It has for its object the construction of a simple, economical and veryeffective device for the purposes stated. I

To this end the invention consists in the novel construction,arrangement and combination of parts herein shown and described and moreparticularly pointed out in the claims.

In the drawings wherein like reference characters indicate like orcorresponding parts, Figure 1 is a side elevation of my improved machineparticularly adapted for sharpening an ordinary razor or similar.instrument of medium stifiness and provided with means for resilientlyholding .the blade in contact with the cotiperating parts, Fig. 2 is avertical sectional view on the line 22 of Fig. 3, Fig. 3 is a transversesection on line 3-3 of Fig. 2, Fig. 4 is a plan view of a slightlymodified form adapted for the use in sharpening thin bladed razors such,

for instance, as the Gillette and similar razors, Fig. 5 is a sectionalview on line 5 5 of Fig. 1, Fig. 6 is a section taken on line 6-6 ofFig. 1. That is to saywith the side removed. Fig. 7 is a plan view of amodification with parts broken away to show the construction, Fig. 8 isa rear elevation of the same, Fig. 9 is a central. section taken on line9-9 of Fig. 7, Fig-1O is a partial vertical section showing the oppositeside of the machine, and Fig. 11 is a per spective view of a bladeholder for that class of razors known as the Gillette form.

In the drawings, 1 is a suitable frame having pivotally mounted near thelower part thereof a vertical oscillating bar 2 on each side which isheld in a central "0- sition by a spring 3 attached at each end;

to a lever 4 pivotally supported at one end as at 5 in the frame of themachine. A pin 4f limits the movement of the levers A in a directiontoward the bar 2. Suitably geared rollers 66 arranged to oppose oneanother on a line near the center of the bar 2 as shown in Fig. 1 aregeared to a cog wheel 7 which may be operated by a crank 8 shown indotted lines in Fig. 2.

Any suitable means may be provided to secure the blade to be operatedupon in position between the upper ends of the bars 2. As shown each bar2 is centrally slotted at its upper end and provided with a pair of carsor projections 22 adapted to receive one end of the bar 9 between themand prevent its lateral movement in relation to the bars 2. A suitableshoulder or enlarged part is provided at each end of the bar 9 adaptedto engage the outer face of each of the bars 2 to prevent longitudinalmovement of the bar 9 and a pin 9 or other suit able means is providedupon the lower face of the bar 9 adapted to enter one of the centrallongitudinal slots or recesses in the bars 2 and prevent the tipping ortwisting of the bar 9 when my device is in operation. A spring clamp 10of suitable form to receive and firmly hold the blade 10 to be sharpenedis adjustably secured to the bar 9 by screws 5" or other suitable meansadapted to adjust the position of the clamp to bring the blade'lO intosuitable position between the opposing rollers 66. The rollers 66 areeach provided with a stropping or sharpening member 11 arranged tocooperate to alternately engage the blade 10 on opposite sides. Theblade of this type of razor is comparatively stiff and rigid and theoscillation of the bars 2 on their pivotal center 12 partiallycontrolled by the spring 3, serves to resiliently hold the blade againstthe face 11 of the roller which is then acting thereon. A suitablelocking member 13 adapted to prevent disengagement of the blade-holderfrom the bars ,2 and also to serve as a guard to partially control theoperation of the device is provided. The member 13 is pivotally mountedas at 14 upon the frame of the machine with an extended arm 15 formedintegrally therewith arranged tocoiiperate with a part 19 upon a lever16 which is pivotally mounted upon the frame 1 as at 21 and adapted toengage "a notch 17 near'the free end ofthearm.

I the Gillette and similar razors.

withdrawn or retracted from its locking position above the bar 9 toengage suitable notches in a disk 25 mounted upon a shaft 26 which alsocarries the gear wheel 7. A spring 28 or other suitable means isprovided to resiliently hold the parts 13 retracted or out of itslocking position. A

spring pawl 27 is arranged to engage the teeth of the gear wheels 7 toprevent a reverse movement of the rolls 6 which might result in injuryto the blade being sharpened as well as to portions of the machine.

In operation a blade 10 is positioned between the jaws of the clamp 10as shown in Figs. 1 and 2 and the bar 9 properly engaged with theoscillating bars 2, the looking member 13 is moved into locking positionthereby withdrawing the projection 2 1 from the notch in the disk 25with which it was in engagement; (see Fig. 1) and the part 19 of thelever 16 engages the shoulder 18 in the arm 15 thereby firmly holdingthe locking member in position. The shank or handle 8 may then beoperated to rotate the wheel 7 which transmits its motion by suitablemeans to the rolls 6-6 thereby alternately bringing their cooperatingstropping elements 11 against opposite sides of the blade. The bars 2are yieldingly held in position by the springs 3 and levers 4:4 bearingagainst their opposite sides and they oscillate in response to thepressure of the stropping element 11 against the opposite sides of theblade. When it is desired to remove the blade from the device the lever16 is operated to disengage the member 19 from the shoulder 18 afterwhich the machine may be operated until one of the notches in the disk25 is positioned to be engaged by the projection 24, when the spring 28will draw the locking member 13 backward releasing the blade holder 9and preventing further rotation of the crank 8. In the preferredconstruction a centrally arranged handle 29 is provided for convenientlyhandling the device.

In the form shown in Figs. 4:, 5 and 6 the device is adapted forstropping or sharpening a thin flexible blade similar to In this formthe resilience of the blade is sufficient to provide the desiredpressure for the stropping element 11 on opposite sides of the blade.The oscillating bars 2 therefore are omitted and a suitable blade-holder30 hereinafter more particularly described and shown is positioned insuitable slots 31 in the frame of the machine. The operation issubstantially the same as above described with the exceptions noted.

In Figs. 7, 8, 9 and 10 a simpler form of my device is shown forsharpening thin blades, in this form shafts 33-33 carry the stropping orsharpening means 34 arranged in pairs on opposite sides of each shaftthereby securing two engagements on each side of the blade at eachrevolution of the shaft. A pawl 35 prevents a reverse movement of themachine. The locking member 36 is pivotally mounted upon the frame ofthe device as at 37 and an integral extension 38 is provided thereon formanually controlling the position of the locking member. A cross-bar 39is also provided and serves as a convenient stop to limit the movementof the locking member in one direction. One of the shafts 33 projectsbeyond the side of the machine and a disk 40 having one or more notches-11 formed therein is mounted upon. the projecting end of the shaft andrigidly secured thereto. The looking member 36 is provided with anintegral arm 42 having a projection 43 adapted to engage the notch 41 tolock the disk against rotation. A spring 441 is provided arranged tonormallv retract the locking member 36 and to hold the projection 43 inengagement with the notch 41, as shown in Fig. 10.

Any suitable form of blade-holder may be provided. In Fig. 11 a frameadapted for use with the thin blade hereinbefore referred to is shown.In this form a pair of cooperating bars 30 are provided one of which hasa pair of laterally projecting pins 45 rigidly secured thereto arrangedto engage suitable holes 46 in the opposite bar. One of the bars 30 alsocarries a pair of projecting pins (not shown) adapted to engage thescrew holes 47 in the blade 48. Suitable means may be provided upon thebar to properly engage any particular form of blade and retain the samein position during the sharpening operation. The mode of operation ofthis form of my device is apparent. The blade is engaged by the holder,the latter is positioned in the slots provided to receive it to bringone edge of the blade into proper position between the stroppingmembers. The locking member 36 is pressed forward into contact with thebar 39 there- .by withdrawing the projection 43 from the therebypermitting the lockin member to spring back into the posit-ion s own inFig. 10 when the blade may be removed.

In the forms shown the sharpening elements are designed for stroppingpurposes only, but it 1s obvious that if desired suitably formed honesmay be substituted for the stropping members hereinbefore described,thereby providing a suitable device for honing a razor. As shown thesharpening elements are arranged spirally around their centers ofrotation. When thus constructed each sharpening element will firstengage the blade at one end and from that point the stropping orsharpeningsurface is gradually drawn or wiped along the side of theblade substantially the same as in the usual stropping operation.

Having thus described my improvement it is obvious that variousimmaterial modifications may be made in my device without departing fromthe spirit of my invention, hence I do not wish to be understood aslimiting myself to the exact form or construction shown. 7

What I claim as new and desire to secure by Letters Patent is:

1. Ina device of the kind described, a detach-able blade-holder, a pairof rotatable members each provided with a sharpening element extendinglongitudinally thereof, adapted to alternately engage a blade positionedin said blade-holder and move the same laterally, mechanism normally outof engagement with said blade-holder adapted to prevent the displacementof the same while said members are rotating, andmea-ns for rotating saidmembers.

2. In a device of the kind described a' laterally movable detachableblade-holder, a pair of rotatable members each provided with asharpening element extending longitudinally thereof adapted toalternately engage a blade positioned in said blade-holder and move thesame laterally, and means for rotating said members,

3. In a device of the kind described, a detachable blade-holder, a pairof rotatable members, each provided with a sharpening element extendinglongitudinally thereof adapted to alternately engage a blade positionedin said blade-holder, mechanism controlled by said rotatable membersadapted to prevent the disengagement of said bladeholder while saidmembers are rotating, and means for rotating said members.

4. In a device of the kind described, a detachable blade-holder, a pairof rotatable members each provided with a sharpening element extendinglongitudinally thereof adapted to alternately engage a blade positionedin said blade-holder, locking means adapted to engage said members totemporarily prevent their rotation, and a guard adapted to prevent thedisengagement of said blade-holder until said locking means is. engaged,and means for rotating said members.

5. In a device of the kind described, a detachable blade-holder, a pairof rotatable members each provided with a sharpen' element extendinglongitudinally thereof adapted to alternately engage a blade positionedin said blade-holder, locking means adapted to engage said members totemporarily prevent their rotation and a guard formed integral with saidlocking means adapted to prevent the disengagement of said blade-holderuntil said locking means is engaged, and means for rotating saidmembers.

6. In a device of the kind described, a laterally movable detachableblade-holder a pair of rotatable members, each provi ed with a spiralsharpening element rigidly mounted upon said member andextendinglongitudinally thereof, adapted to alternately engage a blade positionedin said blade-holder and move the same laterally, and means for rotatingsaid members.

7. In a device of the kind described, a frame provided with a pair ofarms pivotally connected at one end to the frame, means for resilientlymaintaining the arms in vertical position by pressure in eitherdirection, said arms being provided at their free end to receive a bladeholding member, and means for locking said member in position in thearms, in combination with a pairof opposing rotating members mounted inthe frame on opposite sides of the center of the oscillating arms, eachof said members being i provided with sharpening elements arrange tocontact with the blade placed therebetween and means for rotating themembers in unison.

8. In a device of the kind described, a frame, a pair of arms eachpivotally attached near one end to said frame and a bladeholder mountedupon said arms, in combination with a pair of rotatable members eachprovided with a sharpening element extending longitudinally thereof,arranged to alternately engage a blade positioned in said bladeholderand move the same laterally, and

means for rotatin said members.

9. In a device 0 'the kind described, a pair of opposing rotatingmembers spaced from one another and provided with sharpening elementsarranged to contact with opposite sides of a blade placed therebetween,and means for rotatin the members in unison in combination wit means forpositioning a blade between the opposing faces of the members, a latchmember for retaining the blade in position comprising a pair of bellcrank levers connected by a cross bar adapted to swing forward to coverthe blade in positioning the opposite end of one of said bell crankscooperating with means to lock tating members against rotation when thelocking member is out of operative position.

. pair-[of rotatable members each provided sharpening element extendinglongitudigage a blade positioned in said blade-holder mechanism adaptedto prevent the disen- 'tudinally thereof adapted to alternately en-'adapted to prevent the disengagement of the latch in position over theblade and the other cooperating with meansto lock the ro- 10. A deviceof'the kind described, comprisin a pair of rigidly connected arms eachpivotally attached near one end to said frame and a blade-holder mountedupon said arms, in combination with a pair of rotatable members eachprovided with a nally thereof, arranged to alternately enand move thesame laterally, and means for rotating said members.

11. In a device of the kind described, a laterally'movable detachableblade-holder, a

with a spiral sharpening element extending longitudinally thereofadapted to alterna-tely engage a blade positioned in said blade-holderand move the same laterally,

gagement'of said blade-holder while said members are rotating, and meansfor rotating said members.

12. In a device of the kind described, a laterally movable detachableblade-holder, a pair'of rotatable members each provided with asharpening element extending longigage a blade positioned in saidblade-holder and move the same laterally, locking mechanism adapted toengage said members to temporarily prevent their rotation, a guardtemporarily prevent their rotation, a guard formed integrally with saidlocking means adapted to prevent the disengagement of said blade-holderuntil said locking means is engaged, and means for rotating saidmembers.

14. A device of the kind described, comprising a frame, a pair of armseach pivotally attached near one end to said frame and a blade-holderdetachably mounted upon said arms, in combination with a pair ofrotatable members each provided with a sharpening element extendinglongitudinally thereof, arranged to alternately engage a bladepositioned in said blade-holder and move the same laterally, and meansfor rotating said members.

15. A device of the kind described, comprising a pair of rigidlyconnected arms each pivotally attached near one end to said frame and ablade-holder detachably mounted upon the free ends of said arms, incombination with a pair of rotatable members each provided with asharpening element extending longitudinally thereof, arranged toalternately engage a blade positioned in said blade-holder, and move thesame laterally, and means for rotating said members.

16. 'A device of the kind described, comprising a frame, a pair ofrigidly connected arms each pivotally attached near one end to saidframe and a blade-holder detachably mounted upon the free ends of saidarms, in combination with a pair of rotatable members each provided witha sharpening element extending longitudinally thereof, arranged toalternately engage a blade positioned in said blade-holder and move thesame laterally, and means for rotating said members.

In testimony whereof, I have hereunto signed my name in the presence oftwo subscribing witnesses.

GEORGE BROWNING. Witnesses ROY W. HILL, CHARLES I. COBB.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

